A widely used weapon employed in
both the anti-torpedo boat and anti-aircraft roles in easily removable
mounts. Some of these guns were mounted on top of main gun turrets
where they could be coupled with the 30.5 cm
guns for gunnery practice. The K16 (also known as BAG) was slightly
different to suit an anti-aircraft mounting but had the same ballistic
characteristics as the K10.

Seven of these guns were allocated for
coast defense and eight more were given to the Army.